P2E00 code meaning
Gear Lever Position Sensor A Circuit
Powertrain system Generic code P2Exx codes Check engine light
What P2E00 means
Gear lever position sensor A is the first of up to four sensors through which an electronic selector tells its control module where the lever sits. In the designs GM and Toyota document, A and B form a redundant pair that each report the full lever position; GM's patent US9249877 has each of its two sensors deliver an x and a y value. P2E00 is the umbrella circuit fault of sensor A: an open line, a lost supply or a signal the module cannot evaluate, without splitting it into low or high. No manufacturer documents P2E00 publicly; in its 2025 ECM tables GM lists only P2E01 for this sensor and suspends that test while lost-communication U codes are stored. CARB 1968.2 (e)(15) requires circuit monitoring of such transmission inputs. With sensor B valid, shifting usually continues.
P2E00 at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2E00
- Warning lamp or shift-system message
- Gear selection still possible through sensor B, sometimes delayed
- With a second fault, the vehicle may stay in P or N
Common causes of P2E00
- Most likelyLoose connector or chafed wire at the selector assembly
- PossibleSupply or ground of sensor A interrupted
- PossibleSensor A inside the selector assembly failed
- Less likelyInput stage of the evaluating module faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Gear lever position sensor aWiring harnessTCM
What each part of P2E00 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 00 | The exact fault in that area. |
What to do next
- Note P2E00 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2E00
What does P2E00 mean?
P2E00 means "Gear Lever Position Sensor A Circuit". Gear lever position sensor A is the first of up to four sensors through which an electronic selector tells its control module where the lever sits. It is a generic code, so it means the same on every make.
Is it safe to drive with P2E00?
Drive gently and only to a workshop. With P2E00 the car can go into limp mode (reduced power) to protect itself.
Will P2E00 fail an emissions test?
P2E00 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is P2E00 to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P2E00 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.